1. Department of Planning, Research and Statistics, Adamawa State Primary Health Care Development Agency Yola, Adamawa State, Nigeria
2. Department of Economics, School of Arts and Social Sciences, Federal College of Education Yola, Adamawa State, Nigeria
3. Ahmadu Bello University, Zaria, Nigeria
4. Adamawa State Ministry of Health, Yola, Adamawa State, Nigeria
5. Health Policy Research Group, University of Nigeria, Enugu, Nigeria
6. Adamawa State University, Mubi, Adamawa State, Nigeria
7. Federal University of Kashere, Gombe State, Nigeria